.page {
    height: 80vh;
    width: min(600px, 90%);
    margin: 10px auto;
}

.shanke-btn_primary {
    background: cornflowerblue;
}

.shanke-btn_primary:hover {
    background: deepskyblue;
}

.shanke-btn_primary:active {
    background: dodgerblue;
}

.weui-form__desc {
    color: gray;
}